package com.tiansu.reborn.wanda.modules.executor.utils;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.servlet.LocaleResolver;

import javax.servlet.http.HttpServletRequest;
import java.util.Locale;

@Component
public class SpringUtils implements ApplicationContextAware {

	private static ApplicationContext applicationContext;

	@Override
	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
		SpringUtils.applicationContext = applicationContext;
	}

	public static <T> T getBean(Class<T> tClass){
		return applicationContext.getBean(tClass);
	}

	public static <T> T getBean(String name, Class<T> type) {
		return applicationContext.getBean(name, type);
	}

	public static HttpServletRequest getCurrentReq() {
		ServletRequestAttributes requestAttrs = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
		if (requestAttrs == null) {
			return null;
		}
		return requestAttrs.getRequest();
	}

	public static String getMessage(String code, Object... args) {
		LocaleResolver localeResolver = getBean(LocaleResolver.class);
		Locale locale = localeResolver.resolveLocale(getCurrentReq());
		return applicationContext.getMessage(code, args, locale);
	}

}